mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-16 07:35:14 +00:00
net: marvell: fix a missing check of acpi_match_device
[ Upstream commit 92ee77d148
]
When acpi_match_device fails, its return value is NULL. Directly using
the return value without a check may result in a NULL-pointer
dereference. The fix checks if acpi_match_device fails, and if so,
returns -EINVAL.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
parent
6d98c426e5
commit
e3a5ee1382
1 changed files with 2 additions and 0 deletions
|
@ -5132,6 +5132,8 @@ static int mvpp2_probe(struct platform_device *pdev)
|
|||
if (has_acpi_companion(&pdev->dev)) {
|
||||
acpi_id = acpi_match_device(pdev->dev.driver->acpi_match_table,
|
||||
&pdev->dev);
|
||||
if (!acpi_id)
|
||||
return -EINVAL;
|
||||
priv->hw_version = (unsigned long)acpi_id->driver_data;
|
||||
} else {
|
||||
priv->hw_version =
|
||||
|
|
Loading…
Reference in a new issue